Book-folding machine



(No Model.) 3 Sheets-Sheet 1.

E. T. HAZELTINE.

BOOK FOLDING MACHINE.

'No. 369,599. Patented SeptQ6, 1887.

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(No Model.) 3 Sheets--Sheet 2. E. T. HAZELTINE.

BOOK FOLDING MACHINE.

No. 369,599. Patented Sept. 6,1887. AA i 61f i F:

Whewea: v T E Imelda?" (No Model.) 3 Sheets-Sheet 3; E. T. HAZELTINE.

BOOK FOLDING MAGHINE.

No. 369,599 Patented Sept. 6, 1887.

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N4 PEYERs, Pbnlwlilhogmphcr, Washington. D c.

UNITED STATES PATENT Trice.

EZRA T. HAZEL'IINE, OF WARREN, PENNSYLVANIA.

BOOK-FOLDING MACHINE.

Z3PECIFICATION forming part of Letters Patent No. 369,599, datedSeptember 6, 1887.

Application filed July 3, 1886. Serial No. 207,114.

(No model.) Patented in England August 20, 1856, No. 10,678.

T0 at whom it may concern:

Be it known that I, EZRA T. HAZELTINE, a citizen of the United States,residing at WVar ren, inthe county of WVarren and State of Pen 11-sylvania, have invented new and useful Improvements in Book-FoldingMachines, (for which I have obtained a patent in Great Britain, No.10,678, dated August 20, 1886,) of which the following is aspecification.

This invention relates to improvements in the book-folding machine forwhich Letters Patent No.- 345,506 were issued to myself and F. A. WeldJuly 18, 1886.

The object of my invention is to provide novel means for moving thefolded book into engagement with the pressurerollers between which thebook passes for pressing it along the line of the fold made by thefoldingblades.

The invention also has for its object to pro vide novel means forclamping the folded book to move it to the pressure-rollers withoutundue pressure being applied to the folding- 'blades, so that the knifecan rise without liability of lilting the book.

The object of my invention I accomplish in the manner and by the meanshereinafter described and claimed, reference being made to theaccompanying drawings, in which Figure l is a side elevation of abookfolding machine embodying my invention; Fig. 2, a top or plan viewthereof, broken away at one side on the line so a; of Fig. 1 to show thepressure rollers and the clamping jaws for moving the folded book intoengagement therewith; Fig. 3, a vertical sectional view taken on theline 3 g of Fig. 1; Fig. 4, a detail perspective view of one pair of theclampingjaws, showing also a portion of one of the upper book-foldingblades; Fig. 5, a detail perspective view of one of the lower blades;Fig. 6, a sectional view of one of the clamp-operating cams, taken onthe line 3 3 of Fig. 7; Fig. 7, a side elevation of one of the cams, andFig. 8 a detail sectional view of one of the clamping-jaws.

In order to enable those skilled in the art to make and use myinvention, I will now describe the same in detail, referring to thedrawings, where- The numeral 1 indicates a supporting framework; 2, thetable having at each side a slot,

each of which has at its opposite edges aguideplate, 3.

As in the machine forming the subject-mat ter of the application beforereferred to, an attendant sits at each side of the table and places oneof the flattened-out books, back downward, upon the guide-plate 3 at thetime the cross-head 1 is elevated. When the crosshead descends, thevertical blade 5, attached thereto, strikes the book along the foldingline and presses it down upon a vertical blade, 6,

which is held in such position that its top edge isjust below thebookback. The lower edge of the upper blade is chanit'ered to correspond to a groove in the top edge of thelower blade, and the two bladescome sufficiently close for the upper blade to press the book at thefolding-line into the groove of the lower blade to clamp or pinch thebook. The motion of the two blades is thereafter coincident and downwardto force the book between the guide-plates 3 sufficiently far to placethefoldline in a horizontal line passing between the pair of pressurerollers 7, after which the blades separate, the upper one ascending,lcaving the book folded between the guideplates. It is now necessary tomove the book in a horizontal plane to engage and pass between thepressure-rollers to press the book along the folded line and eject itfrom the machine into a suitable receptacle. To accomplish this I employtwo jaws, 8, preferably of wood and capable of sliding back and forth ina rectilinear path on blocks 9, secured to a cross plate, 10, fastenedat its ends to'the frame of the machine. These jaws at one end arecurved into projecting points 11, so that such ends may pass between therollers to or near their peripheral contact. and each jaw is slotted, asat 12, and provided with a metallic wear-plate, 12, Fig. 8, to receivethe upper end of a lever, 13. These levers are mounted 011 independentpivot-pins 14, located in a frame, 15, having journals 16, by which itis as in Fig. 4. The lower ends of the levers have attached studs 21,engaging properlyshaped camgrooves 22 in a cam, 23, fixed to atransverseshaft, 24, each of said grooves having within it an elevation,25, Fig. 6, the construction being such that as the cams are rotated bythe shaft 24 the elevations first spread the lower ends of the leversoutward to swing them on their pivot-pins 14 to close the jaws 8 againstthe opposite sides of the folded line of the book, after which thelevers are so acted upon by the walls of the camgroovcs as to cause themto swing the swiveled frame 15 in its bearings and advance theclamping-jaws toward the pressing-rollers 7, so that the points 11deliver the book directly to the peripheral contact-point of therollers, which grip the book, and'immediately thereupon the jaws are, bythe cams, released and restored to their normal position to clamp andadvance another book.

In order to prevent the clamping action of thejaws from exerting unduepressure on the upper folding-blade while it is between the folded book,which would interfere with the withdrawal of the blade and be liable tolift the book, I provide the acting face of one of the jaws with aprojection, 26, which may consist of a staple driven into the jaws, .ifthe latter are of wood, which is preferable. This projection is in line,vertically taken, with a notch, 27, in the lower edge of the upperblade, so that the projection presses on the folded book through suchnotch and to a large extent prevents'the acting faces of the jaws fromunduly clamping the book upon the opposite sides of the blade, therebypermitting the latter to rise without disturbing thefolded book.

There are three shafts. 24., 28, and 29, extending across themachine-frame, the shaft 28 having a pulley, 30, for the driving-belt,and also a pinion, 31, engaging a spur-wheel, 32, on the shaft 24, whichspur-wheel meshes into a smaller spur-wheel, 33, on the shaft 29, thelatter having a bevel-wheel, 34, engaging a bevel-wheel, 35, on thevertical shaft of one of the pressure-rollers, which shaft is gearedwith the other pressure-roller shaft by gearwheels 36 38, whereby thepressure-rollers are rotated.

The cross-head 4 is secured to a vertical rod, 4, adapted to slide upand down in suitable bearings, and is" operated by a cam, 37, on theshaft 24.. These features, their mode of operation, and the means foroperating the lower 1. The combination, with the book-folding blades andthe pressure-rollers, of opening and closing and laterally-movableclampingjaws for moving the folded book into engagement with thepressure-rollers, substantially as described.

2. The combination, with the book-folding blades and thepressure-rollers, of jaws moving first towardv each and then togethermoving laterally for clamping the folded book and delivering it to thepressure-rollers, and means, substantially as described, for sooperating the jaws.

3. The combination, with the book-folding blades and thepressure-rollers, of two clamping-jaws, a swiveled frame, two leverspivoted in the swiveled frame, and means, substantially as described,for first operating the levers to clamp thejaws on the folded book, andthence advance the jaws to deliver the book to the pressure-rollers,substantially as described.

4. The combination, with the pressure-rollers for pressinga folded bookalong its folded line, of opening and closing and laterallymovable jawsfor clamping the folded book and delivering it to the pressure rollers,sub stantially as described.

5. The combination, with the foldingblade having a notch, of the openingand closing and laterally-moving jaws, one of which is pro vided with aprojection on its acting face arranged in line with the notch in theblade, 9

substantially as and for the purpose described.

6. The combination, with the pressure-rollersfor pressing a folded book,of the sliding jaws, the swiveled frame, thelevers pivoted in theswiveled frame and connected with the jaws, and the cam acting on thelower ends of the levers for moving the jaws to and from each other, andalso to and from the pressurerollers, substantially as described.

In testimony whereof IaffiX my signature in presence of two witnesses.

. EZRA T. HAZELTINE. Witnesses:

FRED P. HUE, J AMES CABLE.

ICO

